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1. RADAR OPERATION
1-42
1.25 Off-Centering the Display
Own ship position, or sweep origin, can be displaced to expand the view field
without switching to a larger range scale. The sweep origin can be off-centered
to the cursor position, but not more than 75% of the range in use; if the cursor is
set beyond 75% of the range scale, the sweep origin will be off-centered to the
point of 75% of the limit.
This feature is not available on the 72 nm (Non-IMO type only) or 96 nm range
scale nor in the true motion mode.
To off-center the radar picture, do the following:
By keyboard
1. Roll the trackball to place the cursor at a position where you wish to move the
sweep origin.
2. Press the [OFF CENTER] key. Then, the sweep origin is off-centered to the
cursor position.
3. To cancel off-centering, press the [OFF CENTER] key again.
By trackball
1. With the cursor inside the effective display area, roll the wheel to display
“OFF CENTER / EXIT” in the guidance box and then push the wheel or the
left button.
2. Roll the trackball to place the cursor where you want to locate the screen
center.
3. Push the left button to off center the sweep origin.
4. To cancel the off-center function, push the left button when the guidance box
reads “OFF CENTER / EXIT.”
Cursor
Place cursor where desired
and execute appropriate
OFF CENTER procedure
Off-centered display
How to off-center the display